Two heating systems
| Heaters with integrated thermostat Our heaters consist of ceramic heating elements, built into an aluminum enclosure designed to thermo-technical specifications, and include an on-off bimetal temperature controller. Resistors and output curves of that heating system show linear characteristics.
2) Due to the built-in temperature controller, there are no high surface temperatures that could influence or damage the built-in devices in their functional reliability. 3) The built-in temperature controller is set to a switch-off temperature of 55 °C (this temperature setting can be modified at the factory upon customers' request). 4) Thermostatically controlled heating systems can be operated without an external temperature controller (price advantage!). However, under particular installation conditions and when high accuracy in controlling the cabinet temperature is required, the installation of a separate temperature controller is of course possible and also reasonable. 5) This heating system is energy saving. At cabinet temperatures above 25 °C, the heating does not switch on! (Other settings are possible - see point 3!) 6) Great variations in rated heating power, voltage, mounting, connecting conditions and enclosure dimensions are possible! 7) Operating voltages from 12 V to 600 V. |
PTC heaters Our heaters consist of specifically designed aluminum bodies with inserted PTC elements. These elements are also called thermistors and consist of doped semiconductor materials.
2) This heating principle can be utilized within a wide voltage range (110 V to 265 V). 3) With types P-25 and P-80, it is possible to install an additional fan. Thereby you achieve a more uniform heat distribution and higher efficiency. 4) Regarding tightly packed built-in devices or danger in touching, we refer to the problem of high surface temperatures (up to 150 °C). 5) PTC heaters do not switch off at a defined point like thermostat-controlled heaters do. An upstream controller is recommended. 6) Due to the barretter effect, switch-on currents are very high. Please notice that regarding fuse protection and interlinking of heaters. |
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We always want to offer you the optimum application-oriented solution including a selected range of controllers and sensors - not only for climate control in control cabinets. 2 different heating principles - thermostat-controlled and PTC self-controlled! |
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